Figfl



(NoModel.)

W. JOHNSON.

Balanced Valve.

lvm-234,040. Patented Nov. 2, 1880..

N. PETERS. PHOTO-L|THOGRAPHER, WASHINGTON. D C

ilNrrEn STATES PATENT EErcE.

WILLIAM JOHNSON, OF LAMBERTVILLE, NEW JERSEY.

BALANCED VALVE.

SPECIFICATION forming part of Letters Patent No. 234,040, dated November2, 1880.

Application filed August 16, 1880.

To all whom it may concern:

Be it known that I, WM. JoHNsoN, a citizen of the United States,residing at Lambertville, in the county of Hunterdon and State of NewJersey, have invented certain new and useful Improvements in BalancingValves for Engines; and I do hereby declare the following to be afull,clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame, reference being had to the accompanying drawings, and to theletters or figures of reference marked thereon, which form a part ofthis specification.

The object of my invention is to balance the valves of engines, wherebythe loss from friction is greatly diminished, the construction beinghereinafter more fully described.

In the accompanying drawings, Figures 1, 4, 5, and 6 show my invention,the latter of these three figures simply showing the balland-socketjoints struck from a common center. Fig. 2 is a plan view, showing theinside of chest-cover, with the balance-plate removed. Fig. 3 is a planview, showing the outside of chest-cover with the adjusting parts. Fig.7 is a plan view of the inner end of the adjusting nut-block.

Similar letters refer to similar parts throughout the several views.

A is the valve controlling the action of the steam against the piston ofthe engine in the usual manner. S is the rod by which the valve ismoved.

B is a valve balance-plate, between the face of which and the valve-seatE the valve has its motion.

C is an adjustable screw-plate or ring, with slots or recesses b, havinga concave portion or edge made to fit the portion of a sphere formedupon the back of the valve balanceplate B, making a ball-and-socketjoint therewith.

D is the nut or box for the adjustable screwplate or ring C, and whichpresses against the chest-cover H as an abutment therefor, said nut orbox being held from turning by means of the lugs d, attached thereto,and which iit into recesses .formed by projections h on the inner sideof cover H.

L is an adjusting 11ut-block passing freely (No model.)

through and supported by a liange by cover H, the inner end of said adjusting-block L having prongs or projections c, which fit slots orrecesses b, formed in ring C, by means ofwhich the said ring is revolvedand made to press against plate B, the outer end of said block L beingturned to an arc or portion of a sphere having a common center wi ththat formed upon plate B, and is also adapted to be turned or revolvedwith a wrench.

P is a screw or bolt, provided with nut 0, by which the parts are heldfirmly in position when adjusted, said nut O being dished or madeconcave to iit the spherical portion of block L, and forming aball-and-socket joint therewith.

The operation consists in the adjustment of the valve balance-plate insuch manner that the valve shall have a free-and-easy but steamtightmovement between the balance-plate and valve-seat, and is as follows:When the valve is in a central position upon the valve-seat the nut O isloosened upon the screw-bolt and the adjusting-blockL is revolved, bymeans of which the plate B is adjusted to valve A through theintermediate mechanism. When the adjustment is made the nut O istightened and the adjustment secured.

I am aware that a plate has been suspended by a ball-joint from a pistonin the chest, and also by two rods, the nuts of which formballand-socket joints; but with neither of these constructions does mydevice conflict. I therefore do not claim the same; but

What I do claim as my invention, and wish to secure by Letters Patent,is-

1. As a means for balancing the valves of engines, a balance-plateformed in one piece and connected with the chest-cover by aballand-socket joint, as and for the purpose set forth.

2. As a means for balancing the valves of engines, a balancing-platesuspended from. the chest by a ball-and-socket joint, the outer snrfaceof said plate being also adapted to form an additional ball-joint with aring on the inner side of the chest, as and for the purpose set forth.

3. As a means for balancing the valves of engines, abalancing-platewhose upper or outer surface is adapted to form aball-and-socket IOO my 'cf-m. ...n

joint with aringou the inner side ofthe chest, as and for the purposeset forth.

4. As a means for bulanciiu;r the vulves of engines, u balaucing-platewhose upper or outer surface is adapted to form a ball-and-socket jointwith an adjustable ringon the inner side of the chest, as and for thepurpose set forth.

5. As a means for balancing the valves of engines, a balaucing-plateWhose npperor outer surface is adapted to forni a ball-and-socliet jointwith an adjustable ring on the inner side of the chest, the. saidadjustment ot' the ring being made from the exterior ot' the chest, asand for the purpose set forth.

6. As a means for balancing; the vulves of engines, a plate connectedwith the chest-cover by a ball-uiul-socket joint, and adjusted and setto the valve from the exterior by two nuts, the uppermost of said nutsacting as a set-nut when the parts are adjusted.

7. As n means for balancing the valves of engines, a pluie suspendedfrom the chest above the valve by u hall-anitsoeket joint, and providedwith suitable means, substantially as described, for holding the platein an)v adjusted position, :1s und for the purpose set forth.

8. As n menus for bnlnneiug' the vulves of engines, a plate suspendedfrom the chest above the valve by a ball-and-soeket joint, and providedwith suitable means, substantially as described, wherebyv the plate isadjusted to the, valve, the said adjustment being;t made from theexterior' ot' the chest, us and for the purpose set forth.

9. As a means for balancing' the vulves of engines, a plate suspended bv a holland-socket joint, the upper or outer surface ot' said platebeing adapted to forni u bnll-and-socket joint with an adjustable ring`ou the inner side ot' the chest, as and for the purpose set forth.

10. As a means for balancing the valves ot' engines, a plate suspendedfrom the chest by a ball-aud-soclt'et joint, in combination with anadjustable screw-threaded ring: on the inner side of the chest, the saidring forming a balland-socket joint with the upper or outer surface ofthe suspended plate, as and for the purpose set forth.

11. As a means for balancing the valves of engines, a plate suspendedfrom the chest by a ball-and-socket joint, in combination with ascrew-threaded ring on the inner side of the chest, which is adapted tobe adjusted from the exterior of the chest by suitable means to theupper or outer face of the suspended plate, as and for the purpose setforth.

1:3. As a means for balancing the valves of engines, the chest-coverprovided with lugs upon one side to prevent the turning of aserewthreadcd ring, in combination with an inner adjustablescrewthreaded ring, which hears upon the upper or outer surface of aplate suspended from said chest-cover, as and for the purpose set forth.

13. As a means for balancing the valves of engines, a balancing-platesuspended from the chesteover by a nut which is constructed to form ahuilend-socket-joint, and an inner ad .instable ring which bears andforms with a balancing-plate an additional ball-and-socket joint, theadjustment of the ring and plate being made from the exterior ofthechest and held in their adjusted positions by a set-nut on the exterior,as and for the purpose set forth.

14. As u means for balancing the valves of engines, a balancing-platesuspended by a balljoint. the upper or outer surface of said plateadapted to form an additional ball-aud-socket joint with a ring withinthe chest, the arcs upon which both joints are formed being struck froma common center, as and for the purpose set forth.

ln testimony whereof I have afxed my signature in presence of twowitnesses.

WM. JOHNSON.

Witnesses:

WM. WELCH,

\\'. F. HERR.

